Spliced bar structure



y 1945'. J. J. MEYER ET AL 2,375,018

SFLICED BAH STRUCTURE I Original Filed March 5, 1941 INVENTOR ose-p u. Mays/e & F QAWK 6 James MMMA ATTO RN 5Y5.

Patented May 1, 1945 R 2,375,013 r f srLIoEo BARSTRUCTURE Joseph J. Meyer and Frank A. ones; Milwaukee, Wis., assignors to G-H Specialty Company, Milwaukee, Wis., a corporation of Wisconsin Original application March 5, 1941, Serial No. 1 381,806, now Patent No. 2,318,877, dated .May y 11, 1943. Divided and this application Febru- I my 18, 1943, Serial No. 476,344

3 Claims; (01. zap-es) This invention relates to improvements in spliced bar structure. The present application is I a division of our application-No. 381,806, filed March 5, 1941, now Patent No. 2,318,877, dated May 11, 1943, and entitled Quilting frames. l

It is a primary object of the presentiinvention to provide a novel. and simple means by which two bar sections may bep-rovided with a separable scarf joint which will; rigidly connect the sec-1 tions end to end but will be demountable with great facility and erected with equal facility, whereby to be well adapted for use in a knockdown structure.

More specifically, it is an object of the invention to provide an organization in which sockets are provided in each of two scarf joined sec tions, whereby the pocket of each section receives the end of the other section to complete a joint which is rigid independent of any means positively connecting the respective sections, the connecting means being employed merely to hold the respective sections in the desired interlockil'lg relationship in which such rigidity is assured;

Itis a further specific object of the invention to provide a novel and improved type of metal fitting useful in the construction of jointed sections of the type to which the invention primarily relates. such fitting facilitating the manufacture of the jointed sections by being almost instantly applicable to the respective sections for the purpose of readil providing the aforesaid pockets.

Other objects and advantages of the invention will be apparent from the following disclosure thereof.

Fig. 3 is a view taken in section on line 3-3 of Fig. 2.

Fig. '4 is a view in perspective of an open clam sheath or fitting of thetype used in the join shown in Figs. 1, 2 and 3. 11:2:

Fig. 5 is a view. showing in plan and partially in section an alternate embodiment of the invention.

Like parts are identified 'by the same reference characters throughout the several views. The bar illustrated is one which may comprise the side bar of a quilting frame such as is illustrated in the companion application ab'ove identified. .Obviously,however, its utility is not limited to this type of construction. J a l, a p The separablev sections l0 and are adapted for end to end coupling by the provision at their respective. joining ends 15 and i6 of chamfered portions each terminating at a shoulder 11, as

best shown in Fig. 2, to. adapt them for complementary. engagement to provide ascar-f joint.

A s heath fitting I8 is clampingly engaged to each sectionin ap osition such that substantially one halflof the sheath extends beyond theshoulder ll over the chamfered portion of the section. The top andlbottom walls of each sheath fitting are preferably indented to provide inwardly directed ribs at I9 and 20 which bite into the wood which preferably constitutes the material of the bar sections l0 and H.

Each sheath fitting I8 is conveniently applied by providing it with serrated end portions 2|. When the fittings are clamped to the respective bar sections under pressure, the teethor serrations at 2| are embedded in the side of the wooden bar as shown in Fig. 3, the ribs [9 and 20 being ment between the sections.

likewise embedded in the top and bottom walls of the. bar. The clamp operationis preferably effected under suflicient pressure to ensure permanent anchorage of the sheath to its respective bar sections. The sheath fitting is originally open as shown in Fig 4. In its open position it is readily slipped over the bar section to which it is to be applied and the operation of clamping it in place as shown in Fig. 3 is surprisingly quick and simple.

When the sections are joined end to end the respective sheaths H3, in conjunction with the shoulders l1 and the chamfered portions of the respective Sections,.provide pockets, the extrme end of each section being received into the pocket enclosed by the sheath of the other section. Thereupon the sheaths permit axial movement to and from the above described position of engagement but prohibit all other relative move- I Consequently it is only necessary to restrain the sections against axial separation to assure their permanent rigidity so long as they remain in assembly.

In the construction shown in Figfzl a splicing bar is used at l4. to span the jointjpetween the sections l0 and II. The bolts 23. perform the dual function of clamping the splicing bar M to the bar sections in and H, and also precluding longitudinal separation of the side bar sections l0 and II. Suitable aligned bores may be provided in the bar sections J0 and II and the splicing bar H to receive such bolts, wing nuts 24 preferably being used to hold the bolts in In the alternative construction shown in Fig. v5,

the joint is identical with that described, but instead of using a splicing bar and two bolts,

scarf joint to maintain the .cham-fered ends of the bar sections against longitudinal separation. As before, the only function required of bolt 25 is to preclude longitudinal separation-,since the pocketing of the chamfered ends 15 and 16 in. the respective fittings l8 absorbs all other strains.

We claim:

1. A sectional bar comprising a plurality of sections adapted for rigid splicing engagement witheach other and having complementary end portions chamfered to provide shoulders and beveled extremities extending beyond the shoulders, socket 'torming bands, one embracing each section adjacent "the shoulder and extending beyond the shoulder in partially overlapping relation to the associated beveled extremity, each band. having portions permanently connected with its associated section, and other portions extending over the beveled extremities to form sockets into which the beveled extremity of another section may provided with bands interlocked with unshouldered portions on a plurality of sides of the in "respective sections and extending over portions the single bolt 25 is passed directly through the of the beveled extremities to provide sockets into which the beveled extremity of a mating section may be received with a wedging action, and means for temporarily locking the mated seci tions against longitudinal separating movement.

3. A bar formed in detachable sections having {mating end portions chamfered to provide abrupt shoulders and complementary beveled end portions extending beyond the shoulders, each section having its shouldered portion permanently embraced by a wide band having ribs and end portions partially embedded in its associated .section, with one side 'of the band projecting over the shoulder in partially covering relation to the .beveled extremity and forming a socket into which the beveled end. portion of a mating sec tion may be fitted, and'means detachably engag'eable with'both sections for temporarily look ing them against relative longitudinal movement.

JOSEPH J. MEYER." FRANK A. JONES. 

